Coldwell Banker Residential Brokerage can help you find Hannum Elementary School, Oak Lawn, IL recently sold homes, condos, rentals and open houses. Refine your Hannum Elementary School real estate search results by price, property type, bedrooms, baths and other features. Need more information? View Coldwell Banker Residential Brokerage Oak Lawn real estate agents or offices and let us help you find the perfect property. We also have area guides that show more information about properties in Oak Lawn, IL.